Wire-nail machine



(No Model.) 5 Sheets-Sheet 1. J. L. COREY.

WIRE NAIL MACHINE.

No. 377,238. Patented Jan. 81, 1888.

N, PETERS. Pmwmhu n hur, wnmu mn. 11C.

(No Model.) v 5 Sheets-Sheet 2. J L. COREY.

W188 NAIL MACHINE,

No. 377,238. Patented J8m31, 1888.

8 EZM 6% (No Model.) 5 Sheets-Sheet 3. J. L. COREY.

WIRE NAIL MACHINE.

No. 377,288. Patented Jan. 81, 1888.

(No Model.) s Sheets-Sheet 4.

J. L. COREY.

WIRE NAIL MACHINE.

m 1 D m W H m 1 k 5 Shets-Sheet 5.

(No Model.)

J. L. COREY.

WIRE NAIL MACHINE.

No. 377,238. Patented Jan. 31, 18.88.

Nrrno STATES JAMES L. COREY, OE TAUNTON, MASSACHUSETTS, ASSIGNOR TO THEBIRMINGHAM IRON FOUNDRY, OF BIRMINGHAM, CONNECTICUT.

WlRE-NAIL MACHINE.

SPECIFICATION forming part of Letters Patent No. 377,238, dated January31, 1888.

(No model.)

To aZZ whom it may concern:

Be it known that I, James L. COREY, of Taunton, in the county of Bristoland State of Massachusetts, have invented a new Improvementin Machinesfor Making \Vire Nails; and I do hereby declare the following, whentaken in connection with accompanying five sheets of drawings and theletters of reference marked thereon, to be a full, clear, and exactdescription of the same, and which said drawings constitute part of thisspecification, and represent, in

Figure 1, a top or plan view of the machine complete; Fig. 2, a verticallongitudinal central section enlarged, showing the headingpuneh in theadvancedor heading position; Figs. 3 and 4, opposite side views of thema: chine; Fig. 5, a longitudinal central section showing the heading-punch in its extreme rear position; Fig. 6, a transverse sectioncutting in front of the holding-dies, showing the clamping-lever; Fig.7, a modification.

Thisinvention relates to animprovement in machines for making the classof nails commonly called wire nails-that is to say, nails which are madefrom a piece of wire, pointed at one end, and the head produced byupsetting the metal at the opposite endthe object of the invention beingan easy and ready adjustment of the holding-dies, and at the same timeto insure a firmness to the dies desirable in this class of machines,and also to construct a machine generally which shall be firm and strongin its action.

A represents the bed of the machine, upon which the operative mechanismis arranged; B, the driving-shaft, arrangedinsuitablebearings, C C, andto which power is applied through a pulley, D, or otherwise, to impartrevolution to the driving-shaft.

E is a feed-bar arranged transversely across the machine at the endopposite to and parallel with the driving-shaft. At one side the bar Eis made fast to a longitudinal slide, F, which works through bearings GG, so that the bar may receive a reciprocating motion at right angles tothe axis of the driving-shaft. This reciprocating movement is impartedby means of two cams, H and I, on the drivingshaft. The one cam H worksagainst a lever, J, hung to the bed on a fulcrum, K, above,

an arm, 1, extends downward into the path of the cam H, and so that thetwo cams work between the lever J at the rear on one side and thedownwardly-projecting'arm P on the opposite side of the driving-shaft,the one cam H working against the inner side of the lever J and theother cam, I, working against the corresponding face of the arm; henceat each revolution of the driving-shaft a full vibratory movement isimparted to both the levers J and L. The lever L is constructed with avertical slot, It.

S represents a third lever hung upon a fulcrum, T, below the feed-bar,and in substan tially the same plane as the lever L. This lever S isconstructed with a vertical slot, U, like the slot It in the lever L.The levers L and S are joined by a connecting-rod, \V, one end adjustably hung in the slot R of the lever L and the other end adjustablyhung in the slot U of the lever S, so that vibratory movement of thelever J is through the lever L imparted to the lever S.

On the opposite side of the machine to the lever S is a similar lever,Y, and into a vertical slot, Z, in the levers a projection, a, from thefeed-bar extends, so that both ends of the feed-bar are held by thelevers S and Y.

The fulcrum T may be a rock-shaft connecting the two levers, so thatmovement imparted to one will be imparted to the other. On the feed-barE a grip, b, is arranged, adapted to grasp the wire as the bar E movesinward, but to escape as the bar E moves outward. This grip is a commonand well-known device not necessary to be described, and for it may besubstituted any of the automatic grasping devices which will grasp, andas the feed bar advances will cause the wire to advance with it, andwhich will release the wire as the feed-bar retreats. A great range ofmovement is required for the feed-bar to adapt it for the various sizesof nails, and this great holding-die.

range is attained through the slots R U in the respective levers L S bysliding the pivots of the connecting-rod up or down in the leversthat isto say, as the pivot of the connectingrod W is moved nearer to orfarther from the fulcrum of the lever L the extent of move ment impartedto the lever S is decreased or increased accordingly, and so with theslot U, if the pivot be moved accordingly, the two slots permit a greatrange of adjustment.

d (see Fig. 2) represents the lower fixed holdingdie, and e the upper orremovable a die-block, f. The lower die is'made adjustable by means ofavertical adj usting-screw, g, from below, and the die-block f isadjustable transversely by lateral adjusting-screws h h up or down.

(see Fig. 1) in the usual manner for this class of dies. The upper dieis loose vertically in the die-block f, so that it may be free to moveThe opening 1 through the dies is in the path of the wire andcorresponds to the diameter of the wire, it being understood that fordifferent diameters different dies are to be introduced, and so that thedies may set closely together around the wire and firmly clamp it forheading in the usual manner for this class of heading-machines.

In order to securely hold the wire, a firm clamp is necessary. Toaccomplish this I ar range a lever, Z, transversely over the die-,

block, hung at one end upon a fulcrum, m, the other end being free torise and fall in a vertical plane. (See Fig. 6.) The vertical movementis imparted to the lever Z by means of a cam, n, on the driving-shaft Bthrough a lever, 1'. (See Fig. 3.) One end of this lever is hung upon afulcrum, t. The other end works against the cam 12 and is supported inthat position by 63 and to which reciprocating movement is ima spring,to, so that the cam will impart a downward movement to the lever r andthe spring u will return it. Between the lever r and the lever Z is alever, o, hung by one end to a fulcrum, w, and connected by the otherend to the lever rforward of its fulcrum, as at 3. A connecting-rod, 4,is hung by one end to the free end of the lever Z and by the other endtothe lever 22, near its fulcrum, so that the system of levers r and 12,under theaction of the cam, impart a great force or pressure through thelever Z to the upper die, 6. The lever Z is caused to bear upon the diee by means of a screw, 5, so that an adjustment may be made to bring thedies into their proper relation to each other to clamp the wire. Theface of these dies is adapted to serve as an anvil upon which the wiremay be upset in the usual manner for heading purposes.

6 represents a slide, which is arranged between longitudinal guides 7 7,(see Fig. 1,)

parted by an eccentric, 8, on the drivingshaft through a connecting-rod,9, as seen in Fig. 2, and so that the slide moves toward and from theheading-dies in the usual manner.

In the forward face of the slide 6-and in These two dies arearranged invertical guides is a vertical slide, 10. (See Figs. 1 and 2.) This slidepartakes of'the longitudinal reciprocating movement of the slide 6 butto it is imparted, also, avertical reciprocating movement, and thislatter movement is produced by means of a cam, 11, on the driving-shaftB through a lever, 12, which works a rock-shaft, 13, and from'whichrockshaft an arm, 14, extends beneath the vertical slide 10, as seen inFigs. 2 and 5. y

The slide 10 isconnected to the arm 14 by means of a slot, 15, and sothat the up-anddown vibratory movement of the arm 14 will thelongitudinal reciprocating movement of the slide 6 to be imparted to theslide 10, as from the'position in Fig. 5 to that in Fig. 2 and return.The time of the cam of the eccentric operating the arm 14 and theeccentric operating the slide 6 is such with relation to each other thatthe descent of the slide 10 is produced during the first part of theadvance movement of the slide 6.

In a projection, 16, in the forward face of the slide 10 theheading-punch 17 is fixed, and. it projects to such an extent that whenin the advanced position, as seen in Fig. 2, the heading-punch may cometo itsproper position with relation to the' holding-dies d e. The slide10 in its extreme forward position, as in Fig. 2, is distant from theholding-dies e d at least equal to the longest nail to be produced bythe machine. The headingpunch extends forward from this face toward theheadingdies, and so that the reciprocating movement of the slide 6 mayimpart to the punch 17 a sufficient movement to produce the heading,this movement being but a fraction of the length of the longest nail.

The wire being fed to the machine and through the holding-dies to suchan extent as to present sufficient metal to form the head, as indicatedin broken lines, Fig. 5, and there clamped by the holding-dies e d, asbefore described, the slide 6 advances, and in the first part of itsadvance the slide 10 descends to bring the heading-punch 17 into linewith the wire, as indicated in broken lines, Fig. 5. From that point theslide advances as if the heading-punch were rigidly fixed to it, andinto the position seen in Fig. 2, when the head- IIO I 2Ov ing iscomplete. This done, the slide6 retreats, I

pointing dies 18 and19, arranged, respectively,

each side of the heading-punch and in transverse guides, advance, so asto receive transverse reciprocating movement toward and from each other,which reciprocating movement is imparted by cams 20 and 21 throughlevers 22 and 23, as seen in Fig. l, and in the usual manner for thisclass of machines. It is unnecessary to describe these cutting andpointing dies further than to say that they cut the point and sever theheaded nail from the wire in the usual manner, and so that-the completenail may drop from the machine.

By giving to the heading-punch, after it has produced the head upon thewire, a movement out of the path of the advancing wire the wire is freeto be moved inward to a point considerably to the rear of the front faceof the heading-punch, so that the movement of the heading-punch may besubstantially the minimum extent for a maximum length of nail, andthereby the same machine is adapted to make nails from the minimum tomaximum length without variation of the extent of movement of theheading'die, and the extent of movement is only that necessary for theheading of minimum length of nail. The result of such arrangement of theslide carrying the headingpunch isthat the machine may run much morerapidly than it could do were the movement of the heading-punch requiredto be equal to the longest nail produced, and not only is the machinepermitted to run more rapidly and greatly increase the product, but thewear and tear of the machine, because of such shortreciprocatingmovement of the heading-slide, is very anuch reduced.

It is often desirable to vary the size of the head or amount of metal inthe head of the nail, and as the cutting-dies are in substantially afixed position with relation to the wire, I make the holdingdies (Z 6adjustable longitudinally that is, in the direction of the line ofwireand this I do by introducing a wedge,

24, back of the die-block, making the adjacent faces of the wedge anddie-block to correspond. The wedge 24 is provided with a verticalscrew-threaded spindle, 25,which extends up through a bridge, 26, abovethe die-block, and is provided with a nut, 27, by which the wedge may bedrawn up or forced downward. If, therefore, a greater amount of metal isrequired, the wedge is dropped, so as to permit the die-block and theholding-dies to recede from the cutters, or if a less amount of metal isrequired the wedge is drawn upward to force the die-block and theholding-dies forward or toward the cutters.

While I prefer to make the movement of the slide carryingtheheading-punch vertical, as I have described, it will be understoodthat it may be otherwise moved, it only being necessary to the inventionthat it shall be thrown transversely out of the path of the advancingwire. As an illustration of such other transverse movement see Fig. 7,in which the punch-holding device is made to swing vertically--that is,at right angles to the path of the wire, and so as to be turned into orout of the path of the wire, as seen in that figure.

I claim- In a machine for making wire nails, the combination of afeed-bar, E, carrying the grasping device to engage the wire, twolevers, J L, hung, respectively, upon opposite sides of thedriving-shaft, parallel connections 0 and N between said levers J and L,the connection 0 provided with an arm, I, cams I H on the drivingshaftbetween said lever J and the arm P, a lever, S, in connection with saidfeed-bar, and an adjustable conneetiomW', between said levers S and L,substantially as described.

' JAMES L. COREY.

\Vitnesses:

E. D. GODFREY, E. L. CROSSMAN.

